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How to enable Medianet for Cisco devices?

The Cisco Medianet Performance Monitor provides per-flow, per-hop visibility into flow metrics such as packet loss and network jitter for audio and video streams, packet loss and round-trip times (RTT) for data streams. To configure your Cisco routers for exporting Medianet related information, follow the step below:

Prerequisites:

The following prerequisites must be met before you can configure Cisco Performance Monitor:

  • The device should run Cisco IOS version 12.4(13r)T or above and support Cisco Performance Monitor. The software version should be 15.1(3)T or above.
  • IPv4 Traffic.
  • The networking device must be configured for IPv4 routing.
  • Cisco Express Forwarding or distributed Cisco Express Forwarding must be enabled on your router and on any interfaces on which you want to enable Cisco Performance Monitor.

Configuring Cisco Performance Monitor:

The configuration for Cisco Performance Monitor is quite similar to Flexible NetFlow configuration. This involves following steps:

  1. Configuring Flow Exporter
  2. Configuring Flow Record
  3. Configuring Flow Monitor
  4. Creating Class
  5. Creating Policy for performance monitor
  6. Attaching the policy to monitored interfaces

Flow Exporter Configuration

The flow exporter defines the destination to which NetFlow packets has to exported.
flow exporter ManageEngine
destination 192.0.2.1 // NetFlow Analyzer listener port
source FastEhternet0/0
transport udp 9996 // Default listener port for NetFlow Analyzer
version 9
option exporter-stats timeout 60
template data timeout 60

Flow Record Configuration

Here we are going to define records that corresponds to Performance and regular Flexible NetFlow fields.
flow record ManageEngine
match ipv4 protocol
match ipv4 source address
match ipv4 destination address
match transport source-port
match transport destination-port
collect routing forwarding-status
collect ipv4 dscp
collect ipv4 ttl
collect ipv4 source mask
collect ipv4 destination mask
collect transport packets expected counter
collect transport packets lost counter
collect transport packets lost rate
collect transport round-trip-time
collect transport event packet-loss counter
collect transport rtp jitter mean
collect transport rtp jitter minimum
collect transport rtp jitter maximum
collect interface input
collector interface output
collect counter bytes
collect counter packets
collect timestamp interval
collect application media bytes counter
collect application media bytes rate
collect application media packets counter
collect application media packets rate
collect application media event
collect monitor event

Flow Monitor Configuration

A flow monitor is the one that caches all the traffic passing through the applied interface and the flow exporter will export all the traffic as UDP datagram to NetFlow Analyzer server.

flow monitor ManageEngine
description Ipv4Monitor
exporter ManageEngine
record ManageEngine
timeout active 60
timeout inactive 60

Flow Class Creation

A Class is the one which specifies the filter that determines which flow traffic to monitor.

Class-map ManageEngine
match any

Policy Creation for Performance Monitor

Policy creation for Performance Monitor is shown below.

Router(Config)#policy-map type performance-monitor ManageEngine
Router(config-pmap)#class ManageEngine
Router(config-pmap-c)#Flow monitor ManageEngine
Router(config-pmap-C)#monitor metric rtp
Router(config-pmap-c-mrtp) clock-rate 8 9600
Router(config-pmap-c-mrtp) max-dropout 2
Router(config-pmap-c-mrtp) max-reorder 4
Router(config-pmap-c-mrtp)# min-sequential 2
Router(config-pmap-c-mrtp)# ssrc maximum 20
Router(config-pmap-c)# monitor parameters
Router(config-pmap-c-mparam)# flows 40
Router(config-pmap-c-mparam)# history 4
Router(config-pmap-c-mparam)# timeout 20
Router(config-pmap-c)# react 41 rtp-jitter-average

Attaching the Policy to Interface

The created policy is now been attached to an interface for performance monitoring:

interface FastEhternet0/0
service-policy type performance-monitor input ManageEngine
You can verify the policy applied details by running following command:
show policy-map type performance-monitor interface FastEthernet0/0

Once the router is configured as mentioned above, you are ready to monitor devices for Cisco Medianet.

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